Boxwood rule
- modifier:
- Benjamin Donne
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Science Museum Group
© The Board of Trustees of the Science Museum
Boxwood rule, marked "Navigation Scale improved by B. Donn".
Details
- Category:
- Surveying
- Object Number:
- 1991-15
- Materials:
- box (wood)
- Measurements:
-
overall: 5 mm x 610 mm x 49 mm,
- type:
- rule
- credit:
- Imperial College of Science & Technology (Dept. of Civil Engineering)
